Programming SMD ATTinyX - How to?

[winneymj]

Hi,
I have prototyped my circuit using DIP versions of the ATTiny84. I used the TinyISP and a bread board to program and burn the bootloader. I am now at the point where I am designing my PCB and I am going to use the SMD version of the ATTiny84.
My question is how do I program this guy? I think doing it in-circuit is probably the way to go but that also means I have to provide header pins for the connection. I really don't them around after I program, so should I unsolder them?
How is the iCufflinks chip programmed?
Any suggestions are much appreciated.

Thanks
Mark

[franklin97355]

You could use POGO pins like adafruit does for some of their devices.

[philba]

Pogo pins are good though it requires that you construct a jig.

If you are using a DIP ATTiny, you could program it before soldering it in. Or use a DIP clip for in-circuit.

For a SOIC, you can use a SOIC clip for in-circuit. I've used them a lot with SOICs.

[scott-42]

If you need the chip to be reprogrammable when installed then put in the header pins for programming. If, on the other hand, you are only talking about the first time the chip is used that you need it programmed, then program it before it ever gets installed. Make a small programmer board with a zif socket for the type of chip you want to program. Last option would be put in the landing holes for the programming plug and then use a jig with pogo pins to mate with it while programming. Main factor on what to choose should be if you are planning on reprogramming in the field (more than once).

Also if you were ordering a lot of chips, you could get the provider to program them for you. This is generally for big (money and volume) orders.